tompw Posted June 15, 2006 Share Posted June 15, 2006 Is the protocol for DMX512A freely available yet? If not, does anyone when it will be? Link to comment Share on other sites More sharing options...
Brian Posted June 16, 2006 Share Posted June 16, 2006 Yes, since 2004. You can buy a copy online from various US websites (ANSI/ESTA) or hard-copy from PLASA in the UK. But do you mean DMX512-A or do you mean the new RDM version. Which was published last week and is available online from the same sources. Link to comment Share on other sites More sharing options...
Modge Posted June 16, 2006 Share Posted June 16, 2006 Out of interest any who's read it, are then any major differences from the original DMX spec? presumable it's backward compatible? Any knew things we should all be aware of? Link to comment Share on other sites More sharing options...
tompw Posted June 16, 2006 Author Share Posted June 16, 2006 I said freely avilable not publically vailable... i.e. is there anywhere where, without having to pay, I can read about the nitty-gritty of what exactly it can (and can't) do, and how the data is encoded. (Both the original and the RDM versions). Link to comment Share on other sites More sharing options...
gareth Posted June 16, 2006 Share Posted June 16, 2006 I said freely avilable not publically vailableThey mean more or less the same thing. What you actually meant to ask was whether it's "available for free". :o If you want the right answer, you've got to ask the right question! Link to comment Share on other sites More sharing options...
tompw Posted June 16, 2006 Author Share Posted June 16, 2006 OK, OK... fair enough. Link to comment Share on other sites More sharing options...
Andrew C Posted June 16, 2006 Share Posted June 16, 2006 This is something that irks me quite a lot. The HUGE cost of buying standards. OK, major manufacturers can justify having copies of BS whatever, but those of us on the periphery that just want an overview of the requirements, or to answer one deep question can't justify the cost. I know the OP was after a USITT rather than BS, but the same applies... I for one, would like to read up on "temporary supplies", but I am unlikely to ever really need it in anger, so why spend the cash? There is stuff in the Building Regs I'd like to have to hand; God alone knows what a copy would cost! :o Yes, I do know I could trog into town and sit and read BSs at the library, but it's not the same, is it? Link to comment Share on other sites More sharing options...
Brian Posted June 16, 2006 Share Posted June 16, 2006 The HUGE cost of buying standards.Luckily the RDM one and DMX one are not too badly priced. IIRC RDM cost me $40 to download. There is stuff in the Building Regs I'd like to have to hand; God alone knows what a copy would cost!A lot of the bilding regs are available online from the odpm.gov.uk website. Link to comment Share on other sites More sharing options...
Tomo Posted June 16, 2006 Share Posted June 16, 2006 Has RDM gone gold then? Last I heard it was still in draft - will have to read a copy if it's now been finalised. Link to comment Share on other sites More sharing options...
dbuckley Posted June 16, 2006 Share Posted June 16, 2006 Once DMX512-A became a standard it was no longer "freely" (as in beer) available, you now need to purchase it. Look here for a summary of change areas: http://www.usitt.org/standards/DMX512Update.html Link to comment Share on other sites More sharing options...
TeeJay Posted June 17, 2006 Share Posted June 17, 2006 This is something that irks me quite a lot. The HUGE cost of buying standards. Yes, I do know I could trog into town and sit and read BSs at the library, but it's not the same, is it? There was a thread on this a few months back on the StageCraft list - the summary from the guys who actually do the standards is that they don't get paid for the many, many hours of researching, comparing and finalising the codes, nor get per diems or anything. And then, rather than have a manufacturer sponsor the standard (which could influence the final code), they set a price that goes somewhere to making back the cost. They did seem to miss the point that if they made the cost cheaper - they'd be able to sell more copies. Check the archives at Stagecraft home page if you want more (I'd post the thread link but the archives aren't working for me at the mo') Link to comment Share on other sites More sharing options...
Ben Langfeld Posted June 18, 2006 Share Posted June 18, 2006 I said freely avilable not publically vailableThey mean more or less the same thing. What you actually meant to ask was whether it's "available for free". :o If you want the right answer, you've got to ask the right question! If we're being that anal then technically "for free" is gramatically incorrect. :blink: Link to comment Share on other sites More sharing options...
tompw Posted October 13, 2006 Author Share Posted October 13, 2006 Update: ended up buying a hard copy from PLASA. £22 for 59 pages is rather steep (although understandable given teh above). Curiously, it's cheaper than $40 (~£30) for a PDF. Link to comment Share on other sites More sharing options...
Ekij Posted October 13, 2006 Share Posted October 13, 2006 Todays exchange rate is 1GBP = 1.8558USDSo 40USD is 21.55GBP not ~30 as you stated.So the PDF is (trivially) cheaper. Link to comment Share on other sites More sharing options...
Brian Posted October 14, 2006 Share Posted October 14, 2006 OT but if you think that is expensive try BS EN 50419:2006 (it's to do with WEEE)... Six sheets of A4 for £56 list or £28 for BSI members. Sheet 1 = cover and generic nationalforwardSheet 2 = european forwardSheet 3 = index and first page of real standardSheet 4 = pages 2 and 3 of real standardSheet 5 = page 4 of standard and bibliographySheet 6 = blank page and how to contact BSI So that's 4 (actually 3.5) pages of standard. Makes the DMX spec seem like a bargain :D Link to comment Share on other sites More sharing options...
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